Register shield and filter



June 4, 1940. M. SINCLAIR REGISTER SHIELD AND FILTER Filed May 12. 19592 Sheets-Sheet 1 Attorneys June 4, 1940. M. SINCLAIR REGISTER SHIELD ANDFILTER Filed May 12, 1939 2 Sheets-Sheet 2 A tzomeys Patented June 4,1940 UNITED STATES PATENT OFFICE 4 Claims.

The present invention relates to registers such as wall registers forhot air heating systems, air conditioning systems and the like, and hasfor its primary object to provide a combined shield and filter adaptedfor detachable engagement over the discharge opening of the register toprovide a screen for cleaning the heated air before'it enters the heatedspace and a construction to deflect heated air downwardly into theheated space upon obstructions forming in the'screen.

A further object is to provide an adjustable frame for the shield forfitting upon registers of various sizes within a limited range, and alsoto provide a slidably adjustable screen mounted in the frame.

A still further object is to provide an attachment of this character ofsimple and practical construction, which is neat and attractive inappearance, which may be easily and quickly installed in position on theregister and which at the same time is relatively inexpensive tomanufacture and otherwise well adapted for the purposes for' which thesame is intended.

Other objects and advantages reside in the details of construction andoperation as more fully hereinafter described and claimed, referencebeing had to the accompanying drawings forming part hereof, wherein likenumerals refer to like parts throughout, and in which- Figure l is afront elevational view.

Figure 2 is a vertical sectional view taken substantially on a line 2-2of Figure 1.

Figure 3 is a fragmentary sectional view taken substantially on a line3-3 of Figure 1.

Figure 4 is a fragmentary rear elevational View of one of the uppercorners of the frame.

Figure 5 is a fragmentary perspective view of the end of the upper framemember, and

Figure 6 is a similar view of a modified frame construction.

Referring now to the drawings in detail, the numeral 5 designates ametallic screen frame generally which includes an upper frame member 6of channel-shaped formation in cross section and a side frame member Ilikewise of channel form and of an increased width toward its lower endas more clearly shown in Figure 2 of the drawings. A pair of the framemembers 5 are provided with the upper frame members 6 of each pairhaving telescopic engagement to horizontally adjust the frame membersrelative to each other for fitting about the opening of a wall register8 of conventional construction and which usually includes the hingedlymounted control door 9. The telescopically engaging frame members 5 forma U-shaped frame for the lower ends of the side frame member I are free.I

The upper frame member 6 of each frame memher 5 includes legs 30 and 3|relatively widely spaced, as is clear from Figure 2, the latter legbeing disposed adjacent, and the former leg being spaced from, aregister when the device is associated with a register. The side framememher 1 of each frame member 5 includes legs 32 and 33 in therelationship of the legs 30 and 3|, as is clear from Figure 3.

In the frame construction as illustrated in Figure 5 of the drawings,the inner face of the upper frame member 6, as well as the vertical sideframe member I, is formed with a channel In within which is fitted arubber or similar resilient packing II adapted to contact the outersurface of the register 8 to seal the upper and side edges of theframe.The outer edge of the upper and side frame members are also formed with,a marginal bead l2 whereby the outer flange l3 of the frame members isoffset inwardly to provide a recess within which is seated the sectionalscreen indicated generally at M.

The screen is formed of a pair of sliding screen sections I5 and I6,each of said sections having inwardly bent tongues l1 and I8,respectively, formed at the upper and lower edges thereof and adapted toaccommodate the other of the sections to provide a track for slidablyconnecting the screen sections for horizontal sliding adjustment.

The lower edge of the side frame members likewise are provided withupwardly bent tongues l9 which support the lower corners of the screensections I5 and Hi. If desired, the upper corners of the screen sectionsmay be secured to the frame 5 by means of screws or the like 20.

Each of the screen sections l5 and it include a frame 2| of channel formwithin which the edge portion of a relatively fine mesh screen 22 isinserted and clamped in position between the side walls of the channelthe screen constituting a filter. The frame 5 is secured in position tothe register 8 by means of a threaded bolt 23 which is inserted throughthe side frame member 1, at an intermediate point, the inner end of thebolt having threaded engagement with an eye 24 formed on the outer endof a hook member 25 which has its inner end bent angularly in the formof a hook 26 and engaged under the edge portion of the register 8 asclearly shown in Figure 3 of the drawings.

In Figure 6 a modified construction of the upper frame member designatedat 21 in this instance, is shown, the frame member being of channel formand having beads 28 and 29 formed on the inner ad outer marginal edgesof the frame, the bead 28 being adapted to abut the register 8 While thebead 29 provides the abutment for the upper and side edges of the screenmember.

The lower ends of the side members 1 are free and the increased widththereof serves to incline the front face of the frame outwardly anddownwardly. The lower open side of the frame permits any air deflectedby the screen to pass into the heated space from the register. Theopening at the bottom also permits the operation of the door 9.

It is believed the details of construction and manner of use of thedevice will be readily understood from the foregoing without furtherdetailed explanation.

Having described the invention, what I claim is- 1. A register shieldcomprising a pair of extensi'ole frame members including top framemembers and side frame members, said frame members being of channel formin cross section and the channel of said side frame members being ofincreased width toward their lower ends, to incline the front edge ofthe frame upwardly and inwardly, the bottom of said frame members beingopen to admit air upwardly behind the memhere, an extensible screenmounted in the front edge of the frame, a plurality of hooks engagedwith the register and bolts inserted into the frame members and havingthreaded engagement with the hooks to detachably seem-e the framemembers in position.

2. A register shield comprising a pair of extensible frame membersincluding top frame members and side frame members, said frame membersbeing of channel form in cross section and the channel of said sideframe members being of increased width toward their lower ends, toincline the front edge of the frame upwardly and inwardly, the bottom ofsaid frame members being open to admit air upwardly behind the members,said frame members further having a marginal bead, an extensible screenmounted against the frame members inwardly of the bead and means fordetachably securing the frame members to the register., I 3. A registershield comprising a pair of extensible frame members including top framemem bers and side frame members, said frame members being of channelform in cross section and the channel of said side frame members beingof increased width toward their lower ends, to in- 4. A register shieldcomprising a pair offrame members operatively connected for extensionadjustment, each member including a top frame member of channelcross-section and a side frame member of channel cross-section, saidoperatively connected members forming a U-shaped frame having a freeopen side, said channel-shaped top and side members being relativelywide to space .i

the legs of the channels apart, the legs forming one side of thechannels being disposed adjacent the associated register andthe legsforming the other sides of the channels being spaced from the associatedregister when the shield is secured.

thereto, an extensible screen connected to said register-remote channellegs in a manner to adapt itself to the adjustments of the frame membersand to space said screen from the as; sociated register, said open sideof said frame permitting any air deflected by the screen to' pass intothe heated space from the register, and

means for detachably securing said frame and screen assemblage to aregister. v v, c

MELROY SINCLAIR.

